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//
// G4SolidsWorkspace
//
// Class description:
//
//   Manages the per-thread state of solids - those which 
//   have a per-thread state and dependent classes (if any)
//   In particular it 
//       - owns the arrays that implement 'split' classes 
//       - classes/objects which are owned by the split classes.
//   Background: the classes/objects affected are  
//       - 'split' classes part of its state is per-thread,
//       - per-thread objects, in particular those which are owned 
//         by the split classes.
// Goal: Take ownership and control of per-thread state of 
//       classes to work with multi-threading. 
//       Offshoot of G4GeometryWorkspace, to deal with Solids.

// 4.10.2013 - Created: John Apostolakis, Andrea Dotti
// --------------------------------------------------------------------
#ifndef G4SOLIDSWORKSPACE_HH
#define G4SOLIDSWORKSPACE_HH

#include "G4TWorkspacePool.hh"
#include "G4VSolid.hh"

#include "G4PolyconeSide.hh"
#include "G4PolyhedraSide.hh"

class G4SolidsWorkspace
{
  public: 

    using pool_type = G4TWorkspacePool<G4SolidsWorkspace>;

    G4SolidsWorkspace(G4bool verbose = false);
    ~G4SolidsWorkspace() = default;

    void UseWorkspace();     // Take ownership
    void ReleaseWorkspace(); // Release ownership
    void DestroyWorkspace(); // Release ownership and destroy

    void InitialiseWorkspace();
      // To be called at start of each run (especially 2nd and further runs)

    inline void SetVerbose(G4bool v) { fVerbose=v; } 
    inline G4bool GetVerbose()  { return fVerbose; } 

    static pool_type* GetPool();

  protected:

    void InitialiseSolids();

  private:

    // Helper pointers - can be per instance or shared
    //
    G4PlSideManager* fpPolyconeSideSIM = nullptr;
    G4PhSideManager* fpPolyhedraSideSIM = nullptr;
  
    // Per Instance variables
    // NOTE: the ownership of the Data Arrays is IN this object
 
    // Store SubInstanceManager object pointers (SIM pointers)
    //
    G4PlSideData* fPolyconeSideOffset = nullptr;
    G4PhSideData* fPolyhedraSideOffset = nullptr;

    G4bool fVerbose = false;
};

#endif // G4SOLIDSWORKSPACE_HH